OREANDA-NEWS. April 30, 2010. In March 2010, OJSC Zapsibelektrosetstroy (a member of CJSC OC ESI Group) completed implementation of the project of construction of a 35 kV HV line, tie-in point 35/6 kV "Pad-72" Substation - 35/6 kV Pad-72 Substation with a long span over the river of Irtysh in the Khanty-Mansiysk Autonomous District. In early April 2010, the line was energized.

Construction at the site for the needs of LLC Gazpromneft-Khantos lasted from August 2009 to March 2010. OJSC Zapsibelektrosetstroy acted as a general contractor. The project included organization of a temporary scheme of power supply to oil production facilities via a 6 kV HV line on tubular poles over the Irtysh river, erection of a new 35 kV HV line, tie-in point 35/6 kV Pad-72 Substation - 35/6 kV Pad-72 Substation with the total length of 4km, as well as construction of a special span over the Irtysh river.

The long span was constructed according to the K-P-P-K diagram using PP330-2/76 angular long-span supports, 106 m high, weighing 172.2 tons each, as well as angular dead-end three-pole supports K220-2, 19.5 m high, weighing 41.3 tons each. Supports were manufactured by Energomash Plant (Belgorod) producing metal structures for construction. Construction of a long special span was carried out in accordance with the work plan developed by the experts of production & technical department of OJSC Zapsibelektrosetstroy.

When carrying out design and construction work, the experts of OJSC Zapsibelektrosetstroy took into account specific environmental and geographical environment. In January and February 2010, according to meteorologists from Surgut, the temperature in the construction area reached 35-40°C below zero. As a result, the company's experts made their best endeavors to reduce the down time and complete the work in time.

According to General Director of OJSC Zapsibelektrosetstroy Nikolay Zinchenko, for the first time in the company's history, installation of supports on a special span was carried out by buildup method (stack assembly) by means of a KB-473 pillar crane. Earlier, the experts of OJSC Zapsibelektrosetstroy used only the method of rotation using a "falling" boom to lift long-span supports. "Improvement of the technological base of the enterprise gives us significant competitive advantage when receiving new orders and project implementation using advanced technologies makes them more economically advantageous both for the customer and our company," says Nikolay Zinchenko.